Contents
Agenda/Minutes
CRY+VIS Interface Meeting
Date: 2023/7/7 13:00-13:30
Participants: Takahashi, Node, Akutsu, Uchiyama, Ikeda, Mitsuhashi, Kimura, Ushiba, Aso, Yokozawa
Suspensions
- Type-A: Test of the IP control with ACCs was postponed in IY. Offloaded the GAS filters in IX on 7/3.
- Type-B:
- Type-Bp:
- Type-C:
Other items
- Oplev: Check of the length Oplevs. QPD centering is necessary for PRs.
- ACC: Test of the IP control with ACCs in IY.
- Commissioning:
- Vacuum system: Build the OMC chamber up to 1atm.
- Heater control:
- TMS:
Post O4a
- Measurements of the DAC noise: Every Friday from 7/7.
- Measurements on the sensor correction in SR2: 1 night.
- Optimization of the damping control in PRs: Measurements 2 days, Test 3 days. Check the SUMCON model.
- IP control with the ACCs: Postponed the long-term test in IY.
- In-vacuum accelerometer for IOO: Install the geophone pod into the OMC chamber on 7/10.
Hight adjustments of Type-A in the cooling: Confirm the procedure.
- Check of the length Oplev: Finished except for IY.
- Noise budget of the suspensions: Finished except for the tower part.
- Temperature control for the Oplev: Preparing for the heater controller.
Discussion
VIS Meeting
Date: 2023/7/7 10:00-10:25
Participants: Takahashi, Mitsuhashi, Tanaka, Aso
Summary Report
Type-A
- Test of the IP control with ACCs was postponed in IY.
Type-B
Type-Bp
Type-C
- Damping of the OMC suspension.
- Design of the blade damper.
- Design of the flexible pendulum damper.
Electronics
Control
R&D
- Table-top experiment of the Roberts Linkage.
- Measured the TF of each direction X/Y. Each resonant frequency was identified.
Schedule
- Installation of the geophone pod into the OMC chamber on 7/10.
- Move the TAMA-SAS tower from the warehouse to the ATC lab on 7/19.
Toward O5
Discussion
Next meeting
- 2023/7/21 10:00-